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Home >> Lexus >> 1996 >> ES 300 V6-3.0L (1MZ-FE) >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Main Relay (Computer/Fuel System) >> Testing and Inspection
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Main Relay (Computer/Fuel System): Testing and Inspection






1. REMOVE EFI MAIN RELAY

LOCATION: In the engine compartment relay box.






2. INSPECT EFI MAIN RELAY
- Inspect relay continuity
- Using an ohmmeter. check that there is continuity between terminals 1 and 2.
- If there is no continuity. replace the relay.





- Inspect relay operation
- Apply battery positive voltage across terminals 1 and 2.
- Using an ohmmeter, check that there is continuity between terminals 3 and 5.
- If there is no continuity, replace the relay.
3. REINSTALL EFI MAIN RELAY